884 research outputs found

    Levels of Explanation and Translation Expertise

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    The observable activity of translation, the series of text comprehension and text production bursts we identify as translation, is the result of the activation of complex underlying cognitive systems. In the conduct of research it is often useful to approach such complex systems using a ‘levels of explanation’ framework. This paper considers David Marr’s (1982) three levels of explanation as they might apply to understanding translation and translation expertise more robustly. In cognitive translation studies to date, we have not really extended our understanding of expertise much past the second (algorithmic/representational) level in Marr’s scheme; we have failed to grapple as effectively as we might with the problem of how the second generation computationalist expertise constructs we adopted almost twenty years ago could be integrated with, for instance, connectionist neural network models of the mind, creating a third generation of expertise models. This paper offers some frameworks laying out how that end might be achieved using, for instance, symbolic connectionism and implementational connectivism. Further, it argues that given the overtly symbolic nature of translation language processing, cognitively-oriented translation scholars are uniquely suited to benefit from approaches that bridge the divide between symbol processing models and connectionist ones

    Interactive Tutorials For Upper Level Quantum Mechanics Courses

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    This thesis explores the ongoing need for interactive tutorials in the upper level undergraduate Quantum Mechanics course. It first summarizes the development and evaluation of tutorials at the introductory physics level by others, and then challenges the belief that upper level students do not need this type of intervention by citing research in student difficulties in learning Quantum Mechanics. Physics Education research shows that there are common student misconceptions that persist even in the upper level undergraduate courses such as Quantum Mechanics. Cognitive research serves as a guide for effective curriculum design. A description of the iterative process for developing and evaluating the tutorials is discussed. The development and evaluation of "The Time Evolution of a Wave Function" Quantum Interactive Learning Tutorial (QuILT) is described in detail. Finally, the success of the QuILT in reducing the common misconceptions about time evolution is discussed

    Documenting Industry and Labor in Alabama: Can a Documentation Strategy Model Help?

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    As early as 1997 the Society of Alabama Archivists (SALA) identified a number of topics in Alabama history and culture that were not well documented in the archives in the state. Some of these topics, for example North Alabama\u27s aerospace industry, were just beginning to appear in archival collections. Alabama archivists took note of such fields early enough that the volume of accumulated records did not become a problem. On the other hand, archivists in the state faced enormous problems in coping with the mass of records they already knew existed in other underdocumented fields like labor and industry

    Cognitive Intervention For Individuals With Probable MCI: A Pilot Study

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    The dementia population has accumulated to 47 million people, creating an $818 billion global expense. Approximately 20% of people 65 and older are living with mild cognitive impairment (MCI), a pre-dementia stage of Alzheimer's disease. Cognitive intervention strategies have the potential to reduce the prevalence of dementia due to their ability to slow the conversion to dementia. Speech-language pathologists are uniquely positioned to identify and treat cognitive impairments. If intervention strategies could delay the onset of dementia by five years, there could be a 57% decrease in the dementia population. A single group, pre/post-test design was used. Thirty-six elders at-risk for cognitive decline participated. Eight weeks of group-based, cognitive-linguistic intervention was administered, implementing language stimulation, social engagement, and person-centered memory strategies. Measures of verbal episodic memory, linguistic comprehension and expression, mental status, and visuospatial skills were administered pre- and post-intervention. Data was analyzed using paired samples t-tests. Significant differences were found of assessment measures of linguistic comprehension, linguistic expression, and visuospatial construction following the intervention. Results nearing significance were found on assessment measures of verbal episodic memory. These results support the hypothesis that group-based, cognitive-linguistic intervention programs have the potential to improve cognition and language. Additional research is merited

    Ethical Control of Unmanned Systems: lifesaving/lethal scenarios for naval operations

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    Prepared for: Raytheon Missiles & Defense under NCRADA-NPS-19-0227This research in Ethical Control of Unmanned Systems applies precepts of Network Optional Warfare (NOW) to develop a three-step Mission Execution Ontology (MEO) methodology for validating, simulating, and implementing mission orders for unmanned systems. First, mission orders are represented in ontologies that are understandable by humans and readable by machines. Next, the MEO is validated and tested for logical coherence using Semantic Web standards. The validated MEO is refined for implementation in simulation and visualization. This process is iterated until the MEO is ready for implementation. This methodology is applied to four Naval scenarios in order of increasing challenges that the operational environment and the adversary impose on the Human-Machine Team. The extent of challenge to Ethical Control in the scenarios is used to refine the MEO for the unmanned system. The research also considers Data-Centric Security and blockchain distributed ledger as enabling technologies for Ethical Control. Data-Centric Security is a combination of structured messaging, efficient compression, digital signature, and document encryption, in correct order, for round-trip messaging. Blockchain distributed ledger has potential to further add integrity measures for aggregated message sets, confirming receipt/response/sequencing without undetected message loss. When implemented, these technologies together form the end-to-end data security that ensures mutual trust and command authority in real-world operational environments—despite the potential presence of interfering network conditions, intermittent gaps, or potential opponent intercept. A coherent Ethical Control approach to command and control of unmanned systems is thus feasible. Therefore, this research concludes that maintaining human control of unmanned systems at long ranges of time-duration and distance, in denied, degraded, and deceptive environments, is possible through well-defined mission orders and data security technologies. Finally, as the human role remains essential in Ethical Control of unmanned systems, this research recommends the development of an unmanned system qualification process for Naval operations, as well as additional research prioritized based on urgency and impact.Raytheon Missiles & DefenseRaytheon Missiles & Defense (RMD).Approved for public release; distribution is unlimited

    Barehand Mode Switching in Touch and Mid-Air Interfaces

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    Raskin defines a mode as a distinct setting within an interface where the same user input will produce results different to those it would produce in other settings. Most interfaces have multiple modes in which input is mapped to different actions, and, mode-switching is simply the transition from one mode to another. In touch interfaces, the current mode can change how a single touch is interpreted: for example, it could draw a line, pan the canvas, select a shape, or enter a command. In Virtual Reality (VR), a hand gesture-based 3D modelling application may have different modes for object creation, selection, and transformation. Depending on the mode, the movement of the hand is interpreted differently. However, one of the crucial factors determining the effectiveness of an interface is user productivity. Mode-switching time of different input techniques, either in a touch interface or in a mid-air interface, affects user productivity. Moreover, when touch and mid-air interfaces like VR are combined, making informed decisions pertaining to the mode assignment gets even more complicated. This thesis provides an empirical investigation to characterize the mode switching phenomenon in barehand touch-based and mid-air interfaces. It explores the potential of using these input spaces together for a productivity application in VR. And, it concludes with a step towards defining and evaluating the multi-faceted mode concept, its characteristics and its utility, when designing user interfaces more generally
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